Mechanochemical tools for polymer materials

Y Chen, G Mellot, D van Luijk, C Creton… - Chemical Society …, 2021 - pubs.rsc.org
Mechanochemistry provides a unique approach to investigate macroscopic deformation,
failure and healing of polymer materials. The development of mechanophores–molecular …

Naphthopyran molecular switches and their emergent mechanochemical reactivity

ME McFadden, RW Barber, AC Overholts… - Chemical Science, 2023 - pubs.rsc.org
Naphthopyran molecular switches undergo a ring-opening reaction upon external
stimulation to generate intensely colored merocyanine dyes. Their unique modularity and …

Toughening hydrogels through force-triggered chemical reactions that lengthen polymer strands

Z Wang, X Zheng, T Ouchi, TB Kouznetsova, HK Beech… - Science, 2021 - science.org
The utility and lifetime of materials made from polymer networks, including hydrogels,
depend on their capacity to stretch and resist tearing. In gels and elastomers, those …

Harnessing the power of force: development of mechanophores for molecular release

BA Versaw, T Zeng, X Hu, MJ Robb - Journal of the American …, 2021 - ACS Publications
Polymers that release small molecules in response to mechanical force are promising
materials for a variety of applications ranging from sensing and catalysis to targeted drug …

Mechanically responsive luminescent polymers based on supramolecular cyclophane mechanophores

Y Sagara, H Traeger, J Li, Y Okado… - Journal of the …, 2021 - ACS Publications
A new approach to cyclophane-based supramolecular mechanophores is presented. We
report a mechanically responsive cyclic motif that contains two fluorescent 1, 6-bis …

Fast, reversible mechanochromism of regioisomeric oxazine mechanophores: Develo** in situ responsive force probes for polymeric materials

H Qian, NS Purwanto, DG Ivanoff, AJ Halmes… - Chem, 2021 - cell.com
To address hysteretic or irreversible mechanochromism found in most bond-scission-based
mechanophores, we developed a new family of mechanophores based on the oxazine (OX) …

Cooperative and geometry-dependent mechanochromic reactivity through aromatic fusion of two rhodamines in polymers

M Wu, Y Li, W Yuan, G De Bo, Y Cao… - Journal of the American …, 2022 - ACS Publications
The unique topological features of Piezo proteins underlie the lever-like cellular
mechanotransduction mechanism. This knowledge inspires us to seek topological/geometric …

Conformer Ring Flip Enhances Mechanochromic Performance of ansa-Donor–Acceptor–Donor Mechanochromic Torsional Springs

R Hertel, W Maftuhin, M Walter… - Journal of the American …, 2022 - ACS Publications
Mechanochromophores based on conformational changes of donor–acceptor–donor (DAD)
springs allow sensing of forces acting on polymer chains by monotonic changes of …

Multicolor chromism from a single chromophore through synergistic coupling of mechanochromic and photochromic subunits

W He, Y Yuan, M Wu, X Li, Y Shen, Z Qu… - Angewandte …, 2023 - Wiley Online Library
We report a versatile mechanophore exhibiting a vividly detectable, light‐regulable
multicolor mechanochromism. Such optical features rely on the synergistic coupling of …

The tension-activated carbon–carbon bond

Y Sun, I Kevlishvili, TB Kouznetsova, ZP Burke… - Chem, 2024 - cell.com
Mechanical force drives distinct chemical reactions; yet, its vectoral nature results in
complicated coupling with reaction trajectories. Here, we utilize a physical organic model …